Reports.MQ135 History

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Changed lines 16-18 from:
http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/pollution_sensor_set.jpg
to:
http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/pollution_sensor_set.jpg

[[All sensors code sample (arduino)]]
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Sensor set: Gas Sensor MQ-135 + Humidity Sensor HIH-4030 + Temperature Sensor TMP36:
to:
Sensor set Arduino: Gas Sensor MQ-135 + Humidity Sensor HIH-4030 + Temperature Sensor TMP36:
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http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/serial_monitor_MQ-135.png
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http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/serial_monitor_MQ-135.png

Sensor set: Gas Sensor MQ-135 + Humidity Sensor HIH-4030 + Temperature Sensor TMP36:
http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/pollution_sensor_set.jpg
Deleted lines 12-34:

[++Sample Code++]

int pollutionPin = 0; // MQ-135

int pollutionReading = 0;

void setup() {
->Serial.begin(9600);
}

void loop() {
->// READ POLLUTION
->pollutionReading = analogRead(pollutionPin);
->Serial.println("Pollution reading: "); Serial.println(pollutionReading, DEC);
->float pollutionVoltage = pollutionReading * 5;
->pollutionVoltage /= 1024.0;
-> Serial.println("Pollution Voltage: "); Serial.println(pollutionVoltage);

->delay(1000);
}
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[[Code Sample (arduino)]]
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http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/co2-serial-monitor.png
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http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/serial_monitor_MQ-135.png
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"Resistance value of MQ-135 is difference to various kinds and various concentration gases. So,When using this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for 100ppm NH3 or 50ppm Alcohol concentration in air and use value of Load resistancethat( RL) about 20 Kohm;(10Kohm; to 47 Kohm;)."\\
We used a 20 Kohm resistance. (In case of specific used for more details is better to contact the manufacturer)
to:
"Resistance value of MQ-135 is difference to various kinds and various concentration gases. So,When using this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for 100ppm NH3 or 50ppm Alcohol concentration in air and use value of Load resistancethat( RL) about 20 Kohm;(10K ohm; to 47K ohm;)."\\
We used a 20K ohm resistance. (In case of specific used for more details is better to contact the manufacturer)
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We used a 20 Kohm; resistance. (In case of specific used for more details is better to contact the manufacturer)
to:
We used a 20 Kohm resistance. (In case of specific used for more details is better to contact the manufacturer)
Deleted lines 6-7:

[[http://www.tigoe.net/pcomp/code/arduinowiring/1043 | Tom Igoe's Data Logging Example]]
Changed lines 5-6 from:
[[http://wiring.org.co/learning/basics/airqualitymq135.html | Wiring and Sample Code on Wiring.org]]. This shows how to wire the sensor without a breakout board.
to:
[[http://wiring.org.co/learning/basics/airqualitymq135.html | Wiring and Sample Code on Wiring.org]]. This shows how to wire the sensor without a breakout board. \\
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http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/ESEN090-MQ-135.jpg \\
Deleted lines 5-7:

http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/ESEN090-MQ-135.jpg \\
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\\
http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/co2-serial-monitor.png\\
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http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/co2-serial-monitor.png
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}
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}
\\
http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/co2-serial-monitor.png\\
Changed lines 12-13 from:
"Resistance value of MQ-135 is difference to various kinds and various concentration gases. So,When using this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for 100ppm NH3 or 50ppm Alcohol concentration in air and use value of Load resistancethat( RL) about 20 K􏰀(10K􏰀 to 47 K􏰀)."
We used a 20 K􏰀 resistance. (In case of specific used for more details is better to contact the manufacturer)
to:
"Resistance value of MQ-135 is difference to various kinds and various concentration gases. So,When using this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for 100ppm NH3 or 50ppm Alcohol concentration in air and use value of Load resistancethat( RL) about 20 Kohm;(10Kohm; to 47 Kohm;)."\\
We used a 20 Kohm; resistance. (In case of specific used for more details is better to contact the manufacturer)
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To set the sensor breakboard we look at the datasheet to search for the resistance:
to:
To set the sensor breakboard we look at the datasheet to search for the resistance: \\
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10 kiloohms to 47 kiloohms resistors can be used, but 20 kiloohms is recommended in one of the datasheets.
to:
To set the sensor breakboard we look at the datasheet to search for the resistance:
"Resistance value
of MQ-135 is difference to various kinds and various concentration gases. So,When using this components, sensitivity adjustment is very necessary. we recommend that you calibrate the detector for 100ppm NH3 or 50ppm Alcohol concentration in air and use value of Load resistancethat( RL) about 20 K􏰀(10K􏰀 to 47 K􏰀)."
We used a 20 K􏰀 resistance. (In case of specific used for more details is better to contact the manufacturer)
Changed lines 7-9 from:
[[http://www.pololu.com/catalog/product/1479 | Information about MQ135 Breakout Board by Pololu]]

[-images from http://www.pololu.com-]
to:
[[http://www.pololu.com/catalog/product/1479 | Information about MQ135 Breakout Board by Pololu]] [-images from http://www.pololu.com-]
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http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutResistor.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutFront.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutBack.jpg \\
to:
http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/ESEN090-MQ-135.jpg \\
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}
to:
}
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->Serial.println("Pollution reading: "); Serial.println(pollutionReading, DEC);
to:
->Serial.println("Pollution reading: "); Serial.println(pollutionReading, DEC);
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->delay(1000);
}
to:
->delay(1000);
}
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->Serial.println("Pollution Voltage: "); Serial.println(pollutionVoltage);
to:
-> Serial.println("Pollution Voltage: "); Serial.println(pollutionVoltage);
Changed lines 17-36 from:
[++Sample Code++]
to:
[++Sample Code++]

int pollutionPin = 0; // MQ-135

int pollutionReading = 0;

void setup() {
->Serial.begin(9600);
}

void loop() {
->// READ POLLUTION
->pollutionReading = analogRead(pollutionPin);
->Serial.println("Pollution reading: "); Serial.println(pollutionReading, DEC);
->float pollutionVoltage = pollutionReading * 5;
->pollutionVoltage /= 1024.0;
->Serial.println("Pollution Voltage: "); Serial.println(pollutionVoltage);

->delay(1000);
}
Changed lines 15-17 from:
10 kiloohms to 47 kiloohms resistors can be used, but 20 kiloohms is recommended in one of the datasheets.
to:
10 kiloohms to 47 kiloohms resistors can be used, but 20 kiloohms is recommended in one of the datasheets.

[++Sample Code++]
Changed lines 13-15 from:
[[http://www.tigoe.net/pcomp/code/arduinowiring/1043 | Tom Igoe's Data Logging Example]]
to:
[[http://www.tigoe.net/pcomp/code/arduinowiring/1043 | Tom Igoe's Data Logging Example]]

10 kiloohms to 47 kiloohms resistors can be used, but 20 kiloohms is recommended in one of the datasheets.
Added lines 5-8:

http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutResistor.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutFront.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutBack.jpg \\
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http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutFront.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutBack.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutResistor.jpg \\
Added lines 1-2:
[[http://itp.nyu.edu/~mdl425/wordpress/wp-content/uploads/2012/02/MQ135_datasheet.pdf | MQ135 datasheet]]
Added lines 1-2:
[[http://wiring.org.co/learning/basics/airqualitymq135.html | Wiring and Sample Code on Wiring.org]]. This shows how to wire the sensor without a breakout board.
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[-images from http://www.pololu.com-]
to:
[-images from http://www.pololu.com-]

[[http://www.tigoe.net/pcomp/code/arduinowiring/1043 | Tom Igoe's Data Logging Example]
]
Added lines 1-2:
[[http://www.pololu.com/catalog/product/1479 | Information about MQ135 Breakout Board by Pololu]]
Changed lines 2-4 from:
[-image from http://www.pololu.com-]
to:
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutBack.jpg \\
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutResistor.jpg \\
[-images
from http://www.pololu.com-]
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http://www.pololu.com/picture/view/0J2249 \\
to:
http://itp.nyu.edu/~ls3101/myblog/wp-content/uploads/2012/02/MQ135BreakoutFront.jpg \\
Added lines 1-2:
http://www.pololu.com/picture/view/0J2249 \\
[-image from http://www.pololu.com-]